I was in my early twenties when I saw Star Wars in 1977.
I was already a Trek and SF fan, as well as someone who'd studied film history in art school and had a very wide ranging interest in movies in general, both classic and foreign as well as current American film.
I was undoubtedly older (and more sophisticated) than the average person SW was intended for. It was an incredible era for American cinema - Taxi Driver, The Conversation, The Godfathers, Chinatown, The Last Picture Show, Annie Hall, Barry Lyndon, The Man Who Would Be King and on and on. These are all great films, but they're not exactly light hearted entertainment.
I had seen Lucas' THX1138 in theatrical release and been intrigued by it (not a lot of serious SF then or now on movie screens). And I'd also thoroughly enjoyed American Graffiti. Lucas was an interesting and innovative American filmmaker, so when I heard he was doing a major SF movie, and I saw the amazing looking stills, I was truly looking forward to Star Wars.
But seeing the SW as an adult, I naturally had a different take than many here for whom SW was a formative childhood experience.
I will admit to waiting in line for it on opening day.
I enjoyed the heck out of SW. I loved the execution of it - the visual storytelling was wonderful, the opening shots were amazing and iconic - it told you so much about the rebels vs the Empire in just a few short second.
The movie was also beautiful to look at (always excepting those awful buns on Princess Leia). SW was terrific fun despite the non-science and the sometimes clunky dialogue. Watching SW was an exhilerating, old fashioned movie experience, even down to the sweeping symphonic score - something that was out of fashion for the time. As a space age fairy tale, it had tons of charm.
Bu I couldn't help wishing it had been slanted toward an older audience. Of course, then it would have been a different movie entirely. But I wasn't a kid in 1977.
The Empire Strikes Back is generally held to be a better movie, but I don't like it as much. Empire was freighted with too many expectations, the portentious doings seemed to weigh down the storytelling, and I missed Lucas' breezy directorial style, the moving camera and visual flair. The acting was better of course, although the "science" in SW, what little there'd been, was long gone. Empire certainly had it's good moments ("I love you". "I know". And who could forget "Luke, I am your father"?)
But by The Return Of The Jedi, SWs started the dumbing down in earnest and becgan the long slide toward irrelevancy. This really was kid stuff, cute kid stuff now. Still massively loved by audiences, still a powerful mover of associated tie-in product. But artistically - SW was done as far as I was concerned.
The franchise had a huge impact on the movie industry - basically changed it forever. But I ceased to care after Empire.
The prequels are everything I dislike about big FX movies - cluttered, busy, poorly paced, embarrassing dialogue - did Lucas ever strand his actors! I hate the "more is better" school of movie making - if 120 aliens are good 1200 must be even better!! Why have 40 spaceships when you could have 400! Or 4000! God, no sense of scale, dynamics...I find them bloated and unwatchable.